Podcast Income Calculator

How it works

Podcast sponsorships are sold on Cost Per Mille (CPM), the price an advertiser pays per thousand downloads for one ad slot. Your podcast advertising revenue is that Cost Per Mille multiplied across every slot you sell.

Four numbers drive that podcast income: downloads per episode, slots per episode, how often you publish, and the share of that advertising inventory a brand buys. Those four inputs are the whole of CPM-based podcast monetization, before any of the other revenue streams a podcast can add.

• downloads ÷ 1,000. Thousands of downloads, the unit Cost Per Mille pricing uses.
• CPM. What one advertising slot earns per thousand podcast downloads.
• slots × episodes. The total advertising inventory your podcast publishes in a month.
• fill %. The percentage of that advertising inventory a sponsor actually buys.

The defaults produce about $600 a month in advertising revenue, or $7,200 a year, which is $150 an episode. Here is the arithmetic: 5,000 downloads at a $25 CPM is $125 per filled advertising slot. Two slots across four episodes is eight slots a month, but only 60% sell, so 4.8 of them pay.

Notice how far that podcast revenue sits below the headline download number. The fill rate causes the gap, and it sits among the metrics most podcasters never track.

✓ Every result is checked against independent reference math. See how we test the calculators →

How to use this calculator

1. Enter your average downloads per episode, using the 30-day figure your podcast host reports.
2. Set the Cost Per Mille your sponsorships pay per thousand downloads, blended across pre-roll and mid-roll if those rates differ.
3. Enter how many advertising slots each podcast episode carries and how many episodes you publish in a month.
4. Set the fill rate to the percentage of that advertising inventory you actually sell, not the share you hope to sell.
5. Read the monthly and annual advertising revenue, then add subscription and affiliate marketing income separately for your full podcast earnings.

A worked example: 5,000 downloads at a $25 CPM

Say each episode pulls 5,000 downloads, you sell at a $25 CPM, and you run two ad slots across four episodes a month. Each filled slot is worth $125, and you publish eight slots a month. But at a 60% fill rate only 4.8 of them actually sell, so the show brings in about $600 a month, $7,200 a year, or $150 an episode.

That is a lot less than the download number seems to promise, and the fill rate is why.

Now change nothing about your audience and just sell better. Push the fill rate from 60% to 90% and the same show, same downloads, same CPM, earns $900 a month and $10,800 a year. Not one new listener arrived; the sales side simply caught up with the audience that was already there.

Unsold slots pay zero, so every point of fill rate is money you were leaving on the table.

Put in your own downloads, slots, CPM, and the share of slots you honestly sell, and watch how hard the fill rate pulls on the result before you count on any of it.

Why does fill rate decide what a podcast earns?

Everyone watches downloads and Cost Per Mille. The number that decides your podcast paycheck is fill rate. A slot no brand buys earns nothing, and that space still runs as a house promo or dead air.

The cost of making the podcast episode does not fall to match.

At the defaults, a 60% fill rate brings $600 a month in advertising revenue. Lift that rate to 90% by pitching brands directly for sponsorships or joining an advertising marketplace. The same podcast, same downloads and same Cost Per Mille then pays $900 a month, or $10,800 a year.

That is a 50% lift in revenue from advertising inventory your podcast already publishes. The same gap explains why podcast sponsorships pay far less than a download count suggests, because a rate card assumes every slot sells and at the start almost none do.

So track fill rate as closely as downloads, and treat both as core podcast metrics. An advertising rate card is only pricing on paper, and sold sponsorships are what turn it into podcast income.

Which podcast ad slot pays the most?

Not all advertising slots are worth the same, and position in the episode is why. A brand sets its Cost Per Mille by how likely a listener is to still be there when the advertising plays.

• Pre-roll. Runs before the content, is easy to skip, and carries the lowest Cost Per Mille of the three.
• Mid-roll. Drops into the middle of an episode and reaches a listener who has already stayed, which is why a brand pays the premium podcast CPM.

Post-roll sits at the end, after many listeners have moved on, so it earns the least and often goes unsold. If your podcast slots carry different rates, blend them into the single CPM here, weighted by what each one contributes to advertising revenue.

Some sponsorships are sold as a whole-episode read rather than a slot, and those price above any single CPM. Padding your advertising inventory with cheap pre-roll and post-roll rarely beats the revenue from one well-placed mid-roll sold at a strong price. Brands are buying attention, and mid-roll is where a podcast still has it.

A podcast download is not a listen

Treat the download number with suspicion. A podcast download can be an automatic fetch from an app that is never played, a partial stream, or one person across two devices.

Hosting companies and apps like Apple Podcasts and Spotify count those metrics their own ways, so a Cost Per Mille priced against downloads is softer than it sounds. That softness is the reason to read this podcast income estimate as a ceiling you negotiate under, not a promise.

The looseness of the metric also explains something counterintuitive. A small, tightly targeted podcast often out-earns a big general one, because a brand is buying demographics and relevance rather than raw reach.

Sell those demographics yourself and the deal looks closer to influencer marketing than to digital advertising bought by the thousand. A brand that wants exactly your listeners will pay a rate no programmatic digital advertising network matches.

Podcast sponsorships are self-employment income, so set part of every sponsorship aside for tax before you call it profit. Setting an annual income goal first tells you how many sponsorships you have to sell.

Revenue streams beyond podcast advertising

Advertising is one of several podcast revenue streams, and for most independent podcasts it is not the largest. Diversification across two or three revenue streams, usually a subscription and an affiliate deal, is what turns a podcast into a business.

• Subscription income. A paid subscription on Patreon or a private premium feed charges listeners directly, at a subscription price you set instead of one an advertiser sets.
• Affiliate marketing. A tracked affiliate marketing link or discount code pays you a percentage of each sale, so an engaged podcast audience can out-earn its Cost Per Mille.

A subscription tier brings its own metric, churn rate, which is the share of subscribers who cancel each month. A high churn rate caps subscription income the same way a low fill rate caps advertising. Track churn rate as closely as you track fill rate, because it decides what a subscription is worth.

Advertising income also has a ceiling, because your podcast can only publish so many episodes and sell so many sponsorships. Subscription pricing has no such limit, and subscription revenue often carries the better profit margins, because no sponsor sets the price.

Leaning on one brand is the bigger risk. When that brand pauses its marketing budget, a podcast with no subscription or affiliate marketing revenue loses most of its income in a single month. Spreading that risk across revenue streams is why diversification beats chasing a higher Cost Per Mille.

Every one of those revenue streams carries a cost. Patreon and card processors take a cut, so weigh the payment processing fees and any platform fees against gross revenue.

Hosting, editing and podcast marketing carry a cost too. Judge your podcast profit margins only after every cost is deducted from revenue.

A podcast website with a mailing list lets you sell subscriptions and sponsorships direct, with no platform cut against that revenue. That makes a direct subscription the highest-margin of the podcast revenue streams.